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N08811 Stainless Steel vs. SAE-AISI T8 Steel

Both N08811 stainless steel and SAE-AISI T8 steel are iron alloys. They have 50% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is N08811 stainless steel and the bottom bar is SAE-AISI T8 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 510
780 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1390
1730
Melting Onset (Solidus), °C 1360
1670
Specific Heat Capacity, J/kg-K 480
420
Thermal Conductivity, W/m-K 12
18
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 30
45
Density, g/cm3 8.0
9.0
Embodied Carbon, kg CO2/kg material 5.3
10
Embodied Energy, MJ/kg 76
160
Embodied Water, L/kg 200
120

Common Calculations

PREN (Pitting Resistance) 21
30
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 18
24 to 66
Strength to Weight: Bending, points 18
21 to 41
Thermal Diffusivity, mm2/s 3.0
4.8
Thermal Shock Resistance, points 13
24 to 66

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0.060 to 0.1
0.75 to 0.85
Chromium (Cr), % 19 to 23
3.8 to 4.5
Cobalt (Co), % 0
4.3 to 5.8
Copper (Cu), % 0 to 0.75
0 to 0.25
Iron (Fe), % 39.5 to 50.6
69.3 to 75.4
Manganese (Mn), % 0 to 1.5
0.2 to 0.4
Molybdenum (Mo), % 0
0.4 to 1.0
Nickel (Ni), % 30 to 35
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0.15 to 0.6
0
Tungsten (W), % 0
13.3 to 14.8
Vanadium (V), % 0
1.8 to 2.4